.box {
 display: flex;
 /* flex-direction: row; */
 /* flex-direction: row-reverse; */
 /* flex-direction: column; */
 flex-direction: column-reverse;
}

.item {
    width: 200px;
    height: 200px;
    margin: 15px 15px;
    background-color: rgb(128, 78, 78);

    text-align: center;
    line-height: 200px;
    color: red;
    font-size: 50px;
}